python install_error ai_generated partial

ERROR: Cannot install package1 and package2 because they have conflicting dependencies. Resolver: Circular dependency detected: package1 -> package2 -> package1

ID: python/pip-resolver-dependency-cycle

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2026-01-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

Root Cause

The dependency graph contains a cycle, making it impossible to satisfy all requirements.

generic

中文

依赖关系图包含循环，使得无法满足所有需求。

Workarounds

  1. 80% success 
    pip install package1==1.1 package2==2.1  # versions that don't depend on each other
  2. 70% success 
    pip install package1 package2 --use-deprecated=legacy-resolver

Dead Ends

Common approaches that don't work:

  1. 60% fail

    Ignores dependencies entirely, but the cycle remains; runtime errors are likely.

  2. 90% fail

    The cycle is inherent; order does not resolve it.